Why is Brett Favre a great football player?

A guy like Brett Favre is the key kind of quarterback for football. I mean, the crowd goes nuts when he gets a touchdown pass, you know? BOOM! Tocuhdown!

What I'm saying here is that when you see this guy play football, you sorta get this feeling that you just want to get up and dance etc. Brett Favre is a MVP Quarterback, its believed that he will retire a Vikings in 2010 after his 20th NFL season (1 with NYG, 16 with Green Bay, 1 with NYJ, and 2 with Minnesota)